A good article from yesterday's NY Times: Tighten Your Belt, Strengthen Your Mind
Excerpts:
"Focusing on success is important because willpower can grow in the long term. Like a muscle, willpower seems to become stronger with use."
...
"Whatever the explanation, consistently doing any activity that requires self-control seems to increase willpower — and the ability to resist impulses and delay gratification is highly associated with success in life."
